ChatGPTHello! How can I assist you today改写并润色以下内容按照《金融研究》期刊的语言风格：VaＲ 作为衡量金融机构风险损失的指标因其简单、透明而被广泛使用但也有缺陷。事实上 VaＲ 描述的风险是单个金融机构相互独立和存在的风险它无法度量金融机构之间的风险传染和溢出程度而CoVaＲ模型正好能够弥补这个缺陷和不足。

Value at Risk (VaR) is a widely used metric for measuring the risk of financial institutions due to its simplicity and transparency. However, it is not without its flaws. In reality, VaR only captures the risks that are independent and exist within a single financial institution, making it incapable of measuring the extent of risk contagion and spillover between financial institutions. Fortunately, the CoVaR model can effectively address this limitation and deficiency.